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<title>Step 4: Creating a Backup SLA</title>
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<body style="clear:both; padding-left:10px; padding-top:5px; padding-right:5px; padding-bottom:5px"><a name="EN-US_TOPIC_0000002164598454"></a><a name="EN-US_TOPIC_0000002164598454"></a>

<h1 class="topictitle1">Step 4: Creating a Backup SLA</h1>
<div><p>You can customize SLAs based on your requirements to protect resources. </p>
<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199964685_uicontrol8111821122820"><b>Protection &gt; Protection Policies &gt; SLAs</b></span>.</span></li><li><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000001656561497_uicontrol12915192943311"><b><span id="EN-US_TOPIC_0000002164598454__en-us_topic_0000001656561497_text39091229123315"><strong>Create</strong></span></b></span>.</span></li><li><span>Enter an SLA name.</span></li><li><span>Select an application type for the SLA to be created.</span><p><ol type="a" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_ol71011061385"><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_li874192611325">Click the <span class="uicontrol" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_uicontrol16364345183319"><b>Applications</b></span> icon to create a general SLA or an SLA for a specified application.<ul id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_ul157501053341"><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_li3750135143412">On the <strong id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_b1159831019515">General SLA</strong> tab page, click <strong id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_b7748151518514">All Resources</strong>.<p id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_p144377559348">A general SLA can be applied to resources except filesets, SQL Server, PostgreSQL, Kingbase, Redis, ClickHouse, MongoDB, NAS shares, NAS file systems, Huawei Cloud Stack GaussDB, TDSQL, Kubernetes CSI, TiDB, volumes, common shares, Active Directory, GaussDB T single-node systems, object storage, GaussDB (1.6.0 and later versions), GaussDB (DWS), SAP HANA (as an application in 1.6.0 and later versions), SAP on Oracle, AntDB, VMware, and Hyper-V.</p>
</li><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_li1512516103413">On the <strong id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_b7010451519">Specific to application</strong> tab page, select an application type.<p id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_p1889316245358">This section describes how to create an SLA for a specified application.</p>
</li></ul>
<div class="note" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_note1521871141414"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_p3218512141">Only OceanProtect X series backup appliances support NAS file systems.</p>
</div></div>
</li><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_li7586156123316">Click <span class="uicontrol" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002199961269_en-us_topic_0000002164820434_uicontrol145664914545"><b>OK</b></span>.</li></ol>
</p></li><li><span>Configure a backup policy.</span><p><ol type="a"><li>Click <span class="uicontrol"><b><span><strong>Backup Policy</strong></span></b></span>.</li><li>Set basic parameters of the backup policy.<p><a href="#EN-US_TOPIC_0000002164598454__table2663151516335">Table 1</a> describes the related parameters.</p>
<div class="p">Set the backup interval, copy retention period, and backup time window based on service requirements. The recommended settings are as follows:<ul id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_ul188491594283"><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_li14385102192911">The backup interval must be longer than the backup duration.</li><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_li19397172762917">The retention period of a full backup copy must be longer than that of an incremental backup (or forever incremental (synthetic full) backup) copy.</li></ul>
<div class="note" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_note71621858195515"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_ul192116591633"><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_li921115591430">At least one backup policy must be created. To add more backup policies, click <span><img id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_image94919215716" src="en-us_image_0000002222637705.png"></span> on the right of the page.</li><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_li621119590319">A maximum of four backup policies can be added for each backup type.</li></ul>
</div></div>
</div>

<div class="tablenoborder"><a name="EN-US_TOPIC_0000002164598454__table2663151516335"></a><a name="table2663151516335"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000002164598454__table2663151516335" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Basic parameters of a backup policy</caption><colgroup><col style="width:18.759999999999998%"><col style="width:15.22%"><col style="width:66.02%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" colspan="2" valign="top" id="mcps1.3.2.2.5.2.1.2.3.2.4.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" id="mcps1.3.2.2.5.2.1.2.3.2.4.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" rowspan="2" valign="top" width="18.759999999999998%" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.1 "><p><span><strong>Full Backup</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="15.22%" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.1 "><p><span><strong>Name</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="66.02%" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.2 "><p>Name of a backup policy.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.1 "><p>-</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.1 "><div class="p">Configure the execution time, backup interval, copy retention period, and backup time window for the full backup.<ul><li>Configure the backup interval and copy retention period for full backup.<ul><li><span><strong>By Year</strong></span><p>Configure the job to be executed once every year on <em>xx</em> (month) <em>xx</em> (day). Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
<p>If the date does not exist in the year, no copy is generated.</p>
</li><li><span><strong>By Month</strong></span><p>Configure the job to be executed on <em>xx</em> (day) (multiple days can be selected) or the last day of each month. Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
<p>If the backup job is set to be performed on the <em>xx</em>th day of each month, no copy is generated when the date does not exist in the current month.</p>
</li><li><span><strong>By Week</strong></span><p>Configure the job to be executed every Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday (you can select multiple options). Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
</li><li><span><strong>By day</strong></span><p>Configure the backup job to be performed every <em>xx</em> days starting from <em>xx</em> (year) <em>xx</em> (month) <em>xx</em> (day). Copies are retained for <em>xx</em> days, <em>xx</em> weeks, <em>xx</em> months, <em>xx</em> years, or permanently.</p>
</li><li><span><strong>By Hour</strong></span><p>Configure the job to be executed every <em>xx</em> hours starting from <em>xx</em> (year) <em>xx</em> (month) <em>xx</em> (day). Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
</li></ul>
</li><li>Set the time period for performing full backup. The full backup job will not be scheduled beyond the time range.<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><ul><li>If the end time is earlier than or the same as the start time, the end time is actually the end time of the next day.</li><li>If the backup job is not completed within the specified time window, the system does not stop the backup job, but reports an event.</li><li>Once the retention period expires, the system automatically deletes the expired copies.</li></ul>
</div></div>
</li></ul>
</div>
</td>
</tr>
<tr><td class="cellrowborder" rowspan="2" valign="top" width="18.759999999999998%" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.1 "><p><span><strong>Incremental Backup</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="15.22%" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.1 "><p><span><strong>Name</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="66.02%" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.2 "><p>Name of a backup policy.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.1 "><p>-</p>
</td>
<td class="cellrowborder" valign="top" headers="mcps1.3.2.2.5.2.1.2.3.2.4.1.1 "><div class="p">Configure the initial execution time, backup interval, copy retention period, and backup time window for incremental backup.<ul><li>Configure the backup interval and copy retention period for incremental backup.<ul><li><span><strong>By Year</strong></span><p>Configure the job to be executed once every year on <em>xx</em> (month) <em>xx</em> (day). Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
<p>If the date does not exist in the year, no copy is generated.</p>
</li><li><span><strong>By Month</strong></span><p>Configure the job to be executed on <em>xx</em> (day) (multiple days can be selected) or the last day of each month. Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
<p>If the backup job is set to be performed on the <em>xx</em>th day of each month, no copy is generated when the date does not exist in the current month.</p>
</li><li><span><strong>By Week</strong></span><p>Configure the job to be executed every Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday (you can select multiple options). Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
</li><li><span><strong>By day</strong></span><p>Configure the backup job to be performed every <em>xx</em> days starting from <em>xx</em> (year) <em>xx</em> (month) <em>xx</em> (day). Copies are retained for <em>xx</em> days, <em>xx</em> weeks, <em>xx</em> months, <em>xx</em> years, or permanently.</p>
</li><li><span><strong>By Hour</strong></span><p>Configure the job to be executed every <em>xx</em> hours starting from <em>xx</em> (year) <em>xx</em> (month) <em>xx</em> (day). Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
</li><li><span><strong>By Minute</strong></span><p>Configure the job to be executed every <em>xx</em> minutes starting from <em>xx</em> (year) <em>xx</em> (month) <em>xx</em> (day). Configure copies to be retained for <em>xx</em> days, weeks, months, years, or permanently.</p>
</li></ul>
</li><li>Set the time period for performing incremental backup. The incremental backup job will not be scheduled beyond the time range.<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><ul><li>If the end time is earlier than or the same as the start time, the end time is actually the end time of the next day.</li><li>If the backup job is not completed within the specified time window, the system does not stop the backup job, but reports an event.</li><li>Once the retention period expires, the system automatically deletes the expired copies.</li></ul>
</div></div>
</li></ul>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</li><li>Set other parameters of the backup policy.<div class="p"><a href="#EN-US_TOPIC_0000002164598454__table208961159155817">Table 2</a> describes the related parameters.
<div class="tablenoborder"><a name="EN-US_TOPIC_0000002164598454__table208961159155817"></a><a name="table208961159155817"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000002164598454__table208961159155817" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Other parameters of a backup policy</caption><colgroup><col style="width:35.74%"><col style="width:64.25999999999999%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="35.74%" id="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="64.25999999999999%" id="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="35.74%" headers="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.1 "><div class="p"><strong id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_b203081655125718">Specify Target Location</strong><div class="note" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_note81807159571"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002164820434_p5180415155714">Only the OceanProtect X series backup appliances and OceanProtect E1000 support this parameter.</p>
</div></div>
</div>
</td>
<td class="cellrowborder" valign="top" width="64.25999999999999%" headers="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.2 "><div class="p">Specify the target storage location of backup copies.<ul id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_en-us_topic_0000001839143189_ul3832679403"><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_en-us_topic_0000001839143189_li299019528162"><strong id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_b88759223475">Backup Storage Units</strong>: A backup storage unit corresponds to a backup cluster node. After a backup storage unit is selected, copies are stored to the storage unit. If the capacity of the storage unit is insufficient, the backup job will fail.<p id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_en-us_topic_0000001839143189_p36749546164">For details about how to create a backup storage unit, see "Managing Backup Storage Units" in the <i><cite id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_cite1310416518514">OceanProtect DataBackup 1.5.0-1.6.0 Cluster HA Feature Guide</cite></i>.</p>
</li><li id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_en-us_topic_0000001839143189_li168151656101610"><span class="parmvalue" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_en-us_topic_0000002164820434_parmvalue142224995111"><b>Backup Storage Unit Groups</b></span>: A backup storage unit group is a collection of backup storage units. After a backup storage unit group is selected, the system automatically selects a target backup storage unit based on the storage policy of the storage unit group.<p id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_en-us_topic_0000002164820434_p15126135815168">For details about how to create a backup storage unit group, see "(Optional) Creating Backup Storage Unit Groups" in the <i><cite id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_en-us_topic_0000002164820434_cite961778916">OceanProtect DataBackup 1.5.0-1.6.0 Cluster HA Feature Guide</cite></i>.</p>
</li></ul>
</div>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="35.74%" headers="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.1 "><p><strong id="EN-US_TOPIC_0000002164598454__en-us_topic_0000002200001277_b13827945204210">Job Timeout Alarm</strong></p>
</td>
<td class="cellrowborder" valign="top" width="64.25999999999999%" headers="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.2 "><p>After this function is enabled, an alarm is sent if the job execution time exceeds the time window. The alarm needs to be manually cleared.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="35.74%" headers="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.1 "><p><span><strong>Job Failure Alarm</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="64.25999999999999%" headers="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.2 "><p>After this function is enabled, an alarm is sent when a job fails. The alarm is automatically cleared when the next job is successful.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="35.74%" headers="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.1 "><p><span><strong>Automatic Retry</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="64.25999999999999%" headers="mcps1.3.2.2.5.2.1.3.1.2.2.3.1.2 "><p>After this function is enabled, the system automatically retries if a backup job fails.</p>
<div class="p">The number of retries ranges from 1 to 5, and the waiting time ranges from 1 to 30 minutes. For example, if the number of retries is set to 3 and the waiting time to 5 minutes, the system makes a total of three retries and performs each retry every 5 minutes.<div class="note" id="EN-US_TOPIC_0000002164598454__en-us_topic_0000001656561497_note139701345152818"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000002164598454__en-us_topic_0000001656561497_p11970194518283">During automatic retry, the system creates a backup job. The backup job is executed only when it is within the preset time window.</p>
</div></div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</li><li>Click <span class="uicontrol"><b><span><strong>OK</strong></span></b></span>.</li></ol>
</p></li><li><span>(Optional) Configure an archive policy.</span><p><p>The built-in storage space of the <span>OceanProtect</span> is limited. If you need to retain copy data for a long time, you are advised to archive the copy data to external storage.</p>
<p>You can configure an archive policy by clicking the <span class="uicontrol"><b><span><strong>Archive Policy</strong></span></b></span> icon or by modifying the SLA.</p>
<p>For details about how to configure an archive policy, see <a href="en-us_topic_0000002199964725.html">Archiving</a>.</p>
</p></li><li><span>(Optional) Configure a replication policy.</span><p><p>The <span>OceanProtect</span> allows you to replicate local data to a remote data center. If a disaster occurs, copy data in the remote data center can be used to restore production data and services can be taken over.</p>
<p>You can configure a replication policy by clicking the <span class="uicontrol"><b><span><strong>Replication Policy</strong></span></b></span> icon or by modifying the SLA.</p>
<p>For details about how to configure a replication policy, see "Creating a Replication SLA" for the corresponding product model in <a href="en-us_topic_0000002164758110.html">Replication</a>.</p>
</p></li><li><span>Click <span class="uicontrol"><b><span><strong>OK</strong></span></b></span>.</span></li></ol>
<p></p>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000002164758106.html">Backing Up Common Share Resource Data</a></div>
</div>
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